Fertilization can increase the contents of soil available nutrients.
但施肥能明显提高土壤有效养分含量。
The contribution of different types of active soil organic carbon to soil available nutrients was different.
土壤活性有机碳的不同类型对土壤养分的有效性贡献不同。
The semi-variation structure for most soil available nutrients was obvious and the rate of structural variation accounted for more than 50% of the total variation.
大多数土壤速效养分的半方差结构明显，结构性方差占总方差的比例均在50%以上。
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